As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LEFT HYDRAULIC SYSTEM QUANTITY AND PRESSURE DROPPED TO ZERO AND THE CABIN FILLED WITH SMOKE DURING LANDING ROLLOUT. THE PACKS AND BLEEDS WERE CLOSED AND CABIN DOORS WERE OPENED TO CLEAR SMOKE. THE AIRCRAFT WAS TOWED TO THE GATE. MAINTENANCE FOUND THE LINE TO THRUST REVERSER LOW PRESSURE SWITCH BROKEN. THE LINE WAS REPLACED AND LEAK CHECK WAS GOOD.